code for fetching value to select option - php

I have select option. this option has multiple value from database. I want to update something from database, this value i want to update is exist on the select option I have.
this is my option code
$id = $_GET['update'];
$query = mysql_query("SELECT * FROM transaction where id = '$id'") or die ("could not search");
$count = mysql_num_rows($query);
while ($rows = mysql_fetch_array($query)) {
$id = $rows['id'];
$tranid = $rows['tranid'];
$trandate = $rows['trandate'];
$patientid = $rows['patientid'];
$transactiontype = $rows['transactiontype'];
$trandescription = $rows['trandescription'];
$tranquantity = $rows['tranquantity'];
$tranunitprice = $rows['tranunitprice'];
$tranamount =$rows['tranamount'];
$gettrandescription = $rows['trandescription'];
}
}
if (isset($_POST['selectmedicine'])) {
$gettrandescription=$_POST['medicineid'];
}
if (isset($_POST['selectroomquantity'])) {
$tranquantity=$_POST['quantity'];
}
?>
<script type="text/javascript">
$('#collapseone').collapseone({
toggle: true
});
<option value="<?php echo $trandescription; ?>" <?php if($trandescription==$gettrandescription){ echo "selected";} ?> ><?php echo $gettrandescription; ?></option>
<option value="<?php echo $tranquantity; ?>" <?php if($tranquantity==$tranquantity){ echo "selected";} ?> ><?php echo $tranquantity; ?></option>
this has value results, but i cant fetch this value to my existing select option.

If you want to "make that variable an array" as aldrin27 said, append [] to the name attribute of the select tag. The selected value of the option with name selectroomquantity will be available in your script as $_POST["selectroomquantity"] (this is the varible).
<select multiple name="selectroomquantity[]">
<option value="...">...</option>
</select>
It should only be necessary if multiple options can be selected however.
Also, there seems to be a typo:
<?php if($tranquantity==$tranquantity)
That check will always return true. It should probably be:
<?php if($tranquantity==$gettranquantity)

hi all i just got the code on how to fecth the value to dropdown. actually i made a wrong word. pre-selected is the right one, sorry for that. here;s the working code.
<select name="selectmedicine" class="form-control col-sm-4" id="medicinename">
<option id="0" style="width:100px"></option>
<?php
$medicine = mysql_query("SELECT * FROM medicine");
while ($row = mysql_fetch_array($medicine)) {
echo '<option id="' . $row['medicinename'] . '"';
echo ' value="' . $row['medicineid'] . '"';
if($row['medicinename'] == $trandescription) {
echo ' selected="selected"';
}
echo '>';
echo $row['medicinename'];
echo '</option>';
}
?>
</select>
thanks everyone, whos trying to help me on this. actually this is my five revised question sorry for that. and finally i got the right one.

Related

Duple select from database in same table but diffent proposes

First option of select must be the name referring to the ID. The remaining select options are the remaining names
<select class="input" name="client_id">
<?php
$sel_client_detail="Select * from client WHERE client_id=".$id."";
$result_detail = mysqli_query($con,$sel_client_detail);
while($new_record_row = mysqli_fetch_assoc($result_detail)) { ?>
<option selected><?php echo $row['nome'];?></option>
<?php };?>
<?php
$sel_client="Select * from client";
$result = mysqli_query($con,$sel_client);
?>
<option>-----------</option>
<?php while($new_record_row = mysqli_fetch_assoc($result)) { ?>
<option><?php echo $new_record_row['nome'];?></option>
<?php };?>
</select>
Output:
<select>
<option selected> Izzi (current ID name)</option>
<option> ____________</option>
<option> Other existing clients</option>
<option> Other existing clients</option>
<option> Other existing clients</option>
<option> Other existing clients</option>
</select>
If you want the user to be first in your option list just run the query once and build the HTML parts in 2 seperate strings. Then once the loop is complete put them together and echo them
<?php
echo '<select class="input" name="client_id">';
$itsme = '';
$others = '<option>-----------</option>';
$sql = "Select * from client";
$result = $con->query($sql);
while($row = $result->fetch_assoc()){
if ( $id == $row['id'] ) {
$itsme = "<option selected='selected'>$new_record_row[nome]</option>";
} else {
$others += "<option>$new_record_row[nome]</option>";
}
}
// put the option tags together in the order you specified
echo $itsme . $others . '</select>';
Here's a different, but more conventional, approach to this common scenario:
Why not just make the chosen ID selected when you get to it in the list? Then it will still show to the user first. It's more efficient than having two separate queries.
Like this:
<select class="input" name="client_id">
<?php
$sel_client="Select * from client";
$result = mysqli_query($con,$sel_client);
?>
<option>-----------</option>
<?php while($new_record_row = mysqli_fetch_assoc($result)) { ?>
<option <?php echo ($new_record_row["client_id"] == $id ? "selected": ""); ?> ><?php echo $new_record_row['nome'];?></option>
<?php };?>
</select>

PHP - Edit page , How to set default dropdownlist that have option from MySQL?

I know only this method. this method is assume that you know the values in all <option>
<select name="agama" id="agama">
<option value="Islam"<?php if ($rows['agama'] === 'Islam') echo ' selected="selected"'>Islam</option>
<option value="Khatolik"<?php if ($rows['agama'] === 'Khatolik') echo ' selected="selected"'>Khatolik</option>
<option value="Protestan"<?php if ($rows['agama'] === 'Protestan') echo ' selected="selected"'>Protestan</option>
<option value="Hindu"<?php if ($rows['agama'] === 'Hindu') echo ' selected="selected"'>Hindu</option>
<option value="Buddha"<?php if ($rows['agama'] === 'Buddha') echo ' selected="selected"'>Buddha</option>
<option value="Lain-Lain"<?php if ($rows['agama'] === 'Lain-Lain') echo ' selected="selected"'>Lain-Lain</option>
</select>
.... the above code is example from other people not mine.
but My case is the <option> is select from database too.
I have 2 table, oav_event and oav_album
the oav_album has foreign key (event_id) from oav_event table
I want to check if row['event_id'] from oav_album table is equal to option value (from oav_event table) if true, then set selected="selected"
while($row = mysqli_fetch_assoc($result)) { ?>
<option value="<?php echo $row['event_id']; ?>" >Event: <?php echo $row['event_date']; ?> </option>
<?php } ?>
the option will change depend on change in database table, so I don't know the value in option. How should I do?
<select name="event_id">
<?php
$sql = "SELECT * FROM oav_event";
$result = mysqli_query($conn, $sql);
while($row = mysqli_fetch_assoc($result)) {
$selected = "";
if($row['event_id'] == $Yourmatchvalue)
{
$selected = "selected";
}
?>
<option value="<?php echo $row['event_id']; ?>" selected="<?php echo $selected; ?>" >Event: <?php echo $row['event_date']; ?> </option>
<?php } ?>
</select>
may this helps your. you need to replace $Yourmatchvalue variable with your variable.
You can use $_GET as the method on your form and pass the id of the record using it:
while($row = mysqli_fetch_assoc($result)) {
if (!empty($_GET['event_id']) && $row['event_id'] == $_GET['event_id']) {
$selected = 'selected = "selected"';
} else {
$selected = '';
}
echo '<option '.$selected.' value="'.$row["event_id"].'">'.$row["event_date"].'</option>';
}
Here is a solution,
$selected_value = 'Hindu'; // This will come from database
Change option tag with this
<option value="<?php echo $row['event_id']; ?>" <?php echo ($row['event_id'] == $selected_value) ? 'selected="selected"' : ''; ?> >Event: <?php echo $row['event_date']; ?> </option>
Create one function which will create options list like this:
function setDropdownValue($selectQueue_list,$selectedVal)
{
$queueVal = '';
$selectQueue_list_res=$db->query($selectQueue_list);
while($selectQueue_list_res_row=$db->fetchByAssoc($selectQueue_list_res))
{
$val = $selectQueue_list_res_row['id'];
$name = $selectQueue_list_res_row['name'];
if($val == $selectedVal)
{
$queueVal .= "<option value='$val' selected='selected' label='$name'>$name</option>";
}
else
{
$queueVal .= "<option value='$val' label='$name'>$name</option>";
}
}
return $queueVal;
}
Then create a query:
$get_value_query="SELECT id, name FROM table";
$dropdown_selected_value = !empty($dropdown_value) ? $dropdown_value: ''; // Pass value which you want to be selected in dropdown
Then call this function:
$dropdown_options = setDropdownValue($get_value_query, $dropdown_selected_value);
Later when you get dropdown options in $dropdown_options, use jquery to populate the dropdown, like this:
$('#dropdown_select_id').html("$dropdown_options");
Give it a try, and let me know.

How to retain dropdown selected option after submit / page refresh

I want to have dropdown selected option selected after submit/refresh page. I search for other examples but no one works on my code.
How to retain selected value after submit/refresh with this code?
<form name="test" action="test.php?id=<?php echo $row["id"]; ?>" method="post">
<select id="test_email" name="test_email">
<option value="">...select</option>
<?php
$sql2 = "SELECT test_id, test_email FROM test WHERE status='Act'";
$res = $db->query($sql2);
if ($res->num_rows > 0) {
while($row1 = mysqli_fetch_array($res)) {
?>
<option value="<?php echo $row1['test_email'];?>-<?php echo $row1['test_id'];?>"><?php echo $row1['test_id'];?></option>
<?php
}
}
?>
</select>
Solved this way:
Because I could not pass $_POST['test_email'] with <?php echo $row1['test_email'];?>-<?php echo $row1['test_id'];?>
Because I use explode on $_POST['test_email']
I make one more post (insert in db) $test_temp = trim(mysqli_real_escape_string($db, $_POST['test_email'])); to have my dropdown value (whole string) in db.
I added hidden input in my form <input id="test_temp" type="hidden" name="test_temp" value="<?php echo $row["test_temp"]; ?>">
And changed select option line to <option value="<?php echo $row1['test_email'] . '-' . $row1['test_id']; ?>"<?php if($row1['test_email'] . '-' . $row1['test_id'] == $row['test_temp']) echo ' selected="selected"' ; ?>><?php echo $row1['test_id'];?></option>.
Perhaps this could be simpler but it works like a charm.
#roberto06: Thank you for your guidance.
You need to add the selected="selected" attribute on the option matching your $_POST value.
You might also want to concatenate <?php echo $row1['test_email'];?>-<?php echo $row1['test_id'];?> into <?php echo $row1['test_email'] . '-' . $row1['test_id']; ?>, but that's up to you.
Here's a solution (I assumed that $POST['test_email'] has to be equal to $row1['test_email'] . '-' . $row1['test_id'] in order for the condition to be matched). I'm using a shorthand if...else here, but you could also use a classic if :
<form name="test" action="test.php?id=<?php echo $row["id"]; ?>" method="post">
<select id="test_email" name="test_email">
<option value="">...select</option>
<?php
$sql2 = "SELECT test_id, test_email FROM test WHERE status='Act'";
$res = $db->query($sql2);
if ($res->num_rows > 0) {
while($row1 = mysqli_fetch_array($res)) {
?>
<option value="<?php echo $row1['test_email'] . '-' . $row1['test_id']; ?>"<?php echo (isset($_POST['test_email']) && $row1['test_email'] . '-' . $row1['test_id'] == $_POST['test_email']) ? ' selected="selected"' : ''; ?>><?php echo $row1['test_id'];?></option>
<?php
}
}
?>
</select>
</form>

Sticky select with data from MySQL in PHP genereated form

I have a sticky select form, which gets the data for the options from MySQL. The form should display "Select Type" if no form was submitted (this works). Then I tried to make it sticky. My idea was to compare the $_POST['type'] with the data from MySQL and if its the same it should echo selected.
The $_POST['type'] was working perfectly when I tried to echo it, also the options from the MySQL DB are working.
I feel like I'm close to the solution, but I'm missing something. Any ideas?
<select type="text" name="type" id="type" class="form-control input-lg">
<option value="" disabled <?php if(!isset($_POST['submit'])){ echo "selected";} ?> >Select type</option>
<?php
$result = mysql_query("select * from type");
while ($row = mysql_fetch_assoc($result))
{
$type[] = $row;
}
$count = count($type);
for ($i = 0; $i < $count; $i++)
{
$selected = $_POST['type'];
echo "<option";
if($selected === $type[$i] ){
echo "selected";
}
echo ">";
echo $type[$i]['type'];
echo '</option>';
}
?>
</select>
Change the line echo "selected"; to echo " selected ";
It will currently echo <optionselected> on selected option which is malformed.

how to set the selected value tag <select> html from database in php?

I'm trying to create a drop down menu that will select a value that is stored in the database. here's the code :
require 'koneksi.php';
$sql_select = "SELECT * FROM supplier";
$hasil = mysql_query($sql_select);
if(!$hasil) {
echo "data supplier not found ".mysql_error();
}
$id = $_GET["id"];
$hasil2 = mysql_query("SELECT * FROM brg_supplier WHERE id_brg=".$id);
$data = mysql_fetch_array($hasil2);
if($hasil2) {
$supplier = $data['nama_supplier'];
}
<select name="supplier">
<option value="">---pilih supplier---</option>
<?php
while($baris = mysql_fetch_array($hasil)){
?>
<option value="<?php $baris['nama_supplier'] ?>" <?php if ($supplier==$baris['nama_supplier']) echo 'selected="selected"'; ?> > <?php echo $baris['nama_supplier']; ?> </option>;
<?php }?>
</select>
the problem is my code creates a dropdown with nothing selected. here's the screenshot : link
i've tried all the solutions in the stackoverflow. but the dropdown value still nothing selected. i know that it has to be something simple that i am missing but seriously i cannot figure it out. please anyone help, thanks!
I think the problem lies in this line:
<option value="<?php $baris['nama_supplier'] ?>" <?php if ($supplier==$baris['nama_supplier']) echo 'selected="selected"'; ?> > <?php echo $baris['nama_supplier']; ?> </option>;
You're missing an echo and it looks funny :/
Try instead:
<option <?php $val=$baris['nama_supplier']; echo "value='$val'"; if($supplier==$val) echo "selected='selected'>";echo $val;?> </option>;
Try this way..
$sel="select f.*,c.category from final f, category c where f.category_id=c.id and f.id='$id'";
$data=mysql_query($sel);
$res=mysql_fetch_assoc($data);
<select name="cat">
<?php
$sql = mysql_query("SELECT * FROM category");
while ($row = mysql_fetch_array($sql)){
if($row['id'] == $res['category_id']){
echo '<option value="'.$row['id'].'" selected="selected">'.$row['category'].'</option>';
}else{
echo '<option value="'.$row['id'].'">'.$row['category'].'</option>';
}
}
?>
</select>
Try this out
require 'koneksi.php';
$sql_select = "SELECT * FROM supplier";
$hasil = mysql_query($sql_select);
if(!$hasil) {
echo "data supplier not found ".mysql_error();
}
$id = $_GET["id"];
$hasil2 = mysql_query("SELECT * FROM brg_supplier WHERE id_brg=".$id);
$data = mysql_fetch_array($hasil2);
if(mysql_num_rows($hasil2) > 0) {
$supplier = $data['nama_supplier'];
}
<select name="supplier">
<option value="">---pilih supplier---</option>
<?php
while($baris = mysql_fetch_array($hasil)){
?>
<option value="<?php echo $baris['nama_supplier'] ?>" <?php if ($supplier==$baris['nama_supplier']) {echo 'selected="selected"';} ?> > <?php echo $baris['nama_supplier']; ?> </option>;
<?php }?>
</select>
<option value="<?php $baris['nama_supplier'] ?>
should be
<option value="<?php echo $baris['nama_supplier'] ?>
I spent some time trying to find the best solution for this, and came up with a tiny little jQuery code.
First of all you should be using PDO or mysqli instead of mysql, since it's deprecated. Let's assume you've fixed that.
Inside the <form> tag, add an <input type="hidden"/> so that it can storage your database value, for example:
HTML
<form>
<input id="valueFromDatabase" type="hidden" value="<?php echo $stringFromDB ?>"/>
</form>
Note: in this case, $stringFromDB is a variable that holds your query's return from DB.
So now we have the value of our database inside our HTML code. Now we just need to check if any of the options inside the <select> tag is equal to this value. We'll be doing it with jQuery:
jQuery
$( document ).ready(function() {
$('option').each(function(){
if (this.value == $('#valueFromDatabase').val()){
this.setAttribute('selected', 'selected');
}
});
});
What's happening here? We are telling to jQuery to analyze all the <option> tags in the HTML and compare its value with our value from database; if its equal, we add the selected attribute to the equivalent <option>.
You can it working here (used a calendar example).
Hope that helps!

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